Illustration
A c. 1767 portrait by Thomas King of the English clockmaker John Harrison (1693-1776) who invented the marine chronometer to accurately measure longitude. The chronometer he is holding is the H3, one of a series of five watches he made. (Science Museum, London)
Related Images
Harrison's H5 Marine Chronometer
Workings of Harrison's H5 Chronometer
William Henry Harrison, 1813
Interior Mechanism of the Harrison Chronometer
Harrison's H1 Timepiece
Portrait of John Adams, c. 1766
Cite This Work
APA Style
London, S. M. (2023, March 10). Portrait of John Harrison. World History Encyclopedia. Retrieved from https://www.worldhistory.org/image/17188/portrait-of-john-harrison/
Chicago Style
London, Science Museum,. "Portrait of John Harrison." World History Encyclopedia. Last modified March 10, 2023. https://www.worldhistory.org/image/17188/portrait-of-john-harrison/.
MLA Style
London, Science Museum,. "Portrait of John Harrison." World History Encyclopedia. World History Encyclopedia, 10 Mar 2023, https://www.worldhistory.org/image/17188/portrait-of-john-harrison/. Web. 22 Apr 2025.
